Again, that's more of a gamble. You may be able to sway him and perhaps make him understand that his view might be completely fucking wrong. Considering he's a Buttigieg fan, he most likely consider trans folks as a tool for political power (and sexual pleasure), but in the event he's actually a decent person, if you explain him why he's wrong on everything, starting with the way democrats just can't seem to help themselves but to compromise with people who literally want you dead; you might get through.

I might be too blackpilled, but finding a horny socialist to have fun with would be far easier than trying to get through the amount of brainworms of a Buttigieg supporter. A Warren one might have been easier, but lmao, anyone right of her is a lost cause, it'd be easier to talk to nazis.